{"title":"16-Channel Ethernet Relay Module – Modbus, PoE Support, Isolation Protection","handle":"16-channel-ethernet-relay-module-modbus-poe-support-isolation-protection-ws-30795","url":"/products/16-channel-ethernet-relay-module-modbus-poe-support-isolation-protection-ws-30795","description":"The Waveshare Modbus POE ETH Relay 16CH is an industrial-grade 16-channel relay module controlled over Ethernet using Modbus RTU or Modbus TCP protocol. It features dual Ethernet ports for cascading, Power over Ethernet (PoE) support to IEEE 802.3af, and optocoupler-isolated relay drivers with flyback diode protection.\n\nEach of the 16 relay channels provides both normally open (NO) and normally closed (NC) contacts rated at up to 10A @ 250VAC or 30VDC. The module supports configuration via software, web browser, or DHCP, and is also compatible with HTTP and MQTT protocols (including Alibaba Cloud MQTT). Housed in a DIN rail-mountable ABS enclosure for industrial installations.\n\nKey Features\n\n\n16 Relay Channels – Each with 1NO + 1NC contacts, rated ≤10A @ 250VAC / 30VDC\n\nDual Ethernet Ports – Communication cascading for multi-device setups\n\nPoE Support – IEEE 802.3af Power over Ethernet, reducing cabling requirements\n\nModbus RTU/TCP – Industry-standard protocol support via TCP and UDP\n\nHTTP & MQTT – Additional protocol support for IoT and cloud integration\n\nOptocoupler Isolation – Protects control circuitry from high-voltage relay switching\n\nFlyback Diode Protection – Dedicated relay driver chip with built-in protection\n\nLED Indicators – Power, Ethernet activity (RUN/STA), and data transmission (TXD/RXD)\n\nDIN Rail Mountable – ABS plastic enclosure with snap-on DIN rail installation\n\n\nSpecifications\n\n\nRelay Channels – 16 (1NO + 1NC each)\n\nContact Rating – ≤10A @ 250VAC or ≤10A @ 30VDC\n\nPower Input – DC 7–36V (terminal block or 5.5 × 2.1 mm barrel jack) or PoE (IEEE 802.3af)\n\nPower Consumption – ~0.6W (no load), ~6.5W (all relays energised)\n\nCommunication – Dual Ethernet ports (Modbus RTU/TCP, HTTP, MQTT)\n\nConfiguration – Software, web browser, or DHCP/DNS\n\nOperating Temperature – -15°C to 70°C\n\nEnclosure – ABS plastic, DIN rail mount\n\nWeight – 473g\n\n\nIdeal For\n\nIndustrial automation and remote relay control\nSmart home and building management systems\nLighting control systems\nIoT and MQTT-based monitoring networks\nRemote equipment activation over Ethernet\n\n\nPackage Contents\n\n1× Modbus POE ETH Relay 16CH module\n\n\n\nNote: External power supply is not included. A 12V DC supply is recommended if not using PoE.\n\n\nResources\n\nProduct Wiki\n","vendor":"Waveshare","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":413,"title":"Default Title","sku":"WS-30795","mpn":"30795","price":83.0,"compare_at_price":0.0,"on_sale":false,"in_stock":true,"available_quantity":100,"option1":"Default Title"}]}